A refrigerator is provided. The refrigerator includes a body including a door, a door opening device including a motor, and configured to open the door through a rotation of the motor, a first sensor configured to sense an opening of the door, a second sensor configured to sense a position of the door, and a processor is included, and the processor is configured to control, based on a user command for the opening of the door being obtained, the motor to rotate at a first speed, control, based on the opening of the door being sensed by the first sensor, the motor to rotate by reducing speed in stages to a second speed which is slower than the first speed, and control, based on a position of the door being sensed in a first position by the second sensor, the motor to open the door to a second position by rotating at the second speed.